Blog

Writing on agentic AI, blockchain, and AI systems architecture.

Technical writing by Mudassir Khan — agentic AI consultant and AI systems architect. New posts published directly on this site. Earlier writing on Dev.to.

RAG & AI Engineering

Production RAG pipelines, vector database selection, fine-tuning tradeoffs, and LLM governance.

Cover illustration for: JavaScript Programming: Complete Beginner Guide
AI Engineering15 min read

JavaScript Programming: Complete Beginner Guide

JavaScript is the language of the web and modern AI tooling. This guide covers variables, functions, loops, objects, async, and your first program.

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Cover illustration for: Production RAG: Why Retrieval Fails and How to Fix It
RAGAI Engineering11 min read

Production RAG: Why Retrieval Fails and How to Fix It

Most RAG failures happen at retrieval, not at the LLM. Chunking strategies, hybrid search, reranking, and RAGAS metrics for production RAG pipelines that survive real traffic.

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Cover illustration for: RAG vs Fine-Tuning: The Decision Guide for Production
RAGLLMs9 min read

RAG vs Fine-Tuning: The Decision Guide for Production

RAG vs fine-tuning — which approach fits your production LLM? Covers RAG vs fine-tuning vs prompt engineering, LLM fine-tuning vs RAG, when to use each, and the hybrid pattern that has become standard.

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Cover illustration for: pgvector vs Pinecone vs Weaviate: How to Choose
RAGAI Engineering9 min read

pgvector vs Pinecone vs Weaviate: How to Choose

Start on pgvector, migrate when you must. An AI architect's guide to choosing a vector database — when each option wins, what the performance numbers actually show, and the migration cost most teams underestimate.

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Cover illustration for: AI Governance Framework for Production LLMs: The Checklist
AI SystemsAI Engineering9 min read

AI Governance Framework for Production LLMs: The Checklist

A practical AI governance framework for production LLM systems — the five layers every team needs, the EU AI Act obligations coming into force, and ISO 42001 implementation guidance.

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More posts coming soon

A 30-post technical series on agentic AI architecture, LangGraph patterns, blockchain compliance engineering, and production AI systems is in progress. Follow on Dev.to or LinkedIn to be notified.

Blog — Agentic AI, Blockchain & AI Architecture Writing